package com.hmall.item.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hmall.item.mapper.ItemMapper;
import com.hmall.item.domain.pojo.Item;
import com.hmall.item.service.IItemService;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class ItemService extends ServiceImpl<ItemMapper, Item> implements IItemService {
    @Autowired
    RabbitTemplate rabbitTemplate;

    @Transactional
    @Override
    public void updateStatus(Long id, Integer status) {
        this.update().set("status",status).eq("id",id).update();
        /*LambdaUpdateWrapper<Item> updateWrapper = new LambdaUpdateWrapper<Item>()
                .set(Item::getStatus, status).in(Item::getId, id);
        update(updateWrapper);*/

        String routingKey = (status==1)?"item.up":"item.down";
        //发送消息
        rabbitTemplate.convertAndSend("item.topic",routingKey,id);
    }
}